package guestbook;

import java.io.IOException;
import javax.servlet.http.*;

import com.google.appengine.api.users.User;
import com.google.appengine.api.users.UserService;
import com.google.appengine.api.users.UserServiceFactory;

@SuppressWarnings( "serial" )
public class GuestbookServlet extends HttpServlet {
	public void doGet( HttpServletRequest req, HttpServletResponse resp )
			throws IOException {
		UserService userService = UserServiceFactory.getUserService();
		User user = userService.getCurrentUser();
		
		if( user != null ) {
			resp.setContentType( "text/plain" );
			resp.getWriter().println( "Hello, " + user.getNickname() );
		} else {
			resp.sendRedirect( userService.createLoginURL( req.getRequestURI() ) );
		}
		
		
	}
}
